Katherine Stewart

Katherine Stewart may refer to:
 * Kat Stewart, Australian actress
 * Katherine Stewart (journalist), American writer
 * Katherine Stewart Flippin (1906-1996), African American special educator
 * Katherine Stewart-Jones, Canadian cross-country skier
 * Katherine Stewart MacPhail (1887-1974), Scottish surgeon
 * Katharine Stewart-Murray, Duchess of Atholl (1874–1960), British noblewoman and Scottish Unionist Party politician